General Information

Component Location





General Description

The stop lamp switch indicates brake pedal status to the ABS control unit. The stop lamp switch which is dual switch type send brake light signal to HECU. The switch is turned on when brake is depressed. The stop lamp switch runs to battery voltage when brake depressed. but The stop lamp switch doesn't run to battery voltage when brake is not depressed. On the contrary, The brake switch is normally close type which doesn't run to battery voltage when brake depressed.

DTC Description

The brake light signal is a reference to judge driver's intention for braking and The HECU checks open or short circuit of stop lamp switch for normal ABS/ESC control. If the stop lamp switch have an error, warning ramp will be turned ON.

DTC Detecting Condition





Diagnostic Circuit Diagram